Fracture, Longevity (Fatigue), Dynamics, and Aeroelasticity of Composite Structures.

Abstract

Results of several investigations into the fracture, longevity (fatigue) dynamics, and aeroelasticity of composite materials are reported. The experimental work was conducted using Hercules graphite/epoxy prepreg in two forms: AS1/3501-6 unidirectional tape and A370-5H/3501-6 fabric. The tropics discussed include unnotched tensile fracture, nonlinear stres-strain behavior, failure by delamination, sensitivity to notches under tensile loading, compressive failure, damage growth under cyclic load (both tensile and compressive), and the vibration and deflections of built-up graphite/epoxy wings.

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Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1984
Accession Number
ADA173729

Entities

People

  • James W. Mar
  • John Dugundji
  • Paul A. Lagace

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Composite Materials
  • Composite Structures
  • Cyclic Loads
  • Delamination
  • Elastic Properties
  • Epoxy Laminates
  • Equations
  • Graphitic Materials
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Testing
  • Measurement
  • Modulus Of Elasticity
  • Stress Concentration
  • Stress Strain Relations

Fields of Study

  • Materials science

Readers

  • Battery Technology and Engineering
  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials